• Today

    Sep 18

    65°Lo 49°

    Areas of fog, then sun

    Excellent for running
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
  • Fri

    Sep 19

    73°Lo 60°

    Times of clouds and sun

    Excellent for running
    • Precip
      5%
    • Hours of Precip
      0
    • Wind
      Gust
      22 mph
    more
  • Sat

    Sep 20

    79°Lo 58°

    A couple of p.m. t-storms

    Very Good for running
    • Precip
      74%
    • Hours of Precip
      2.5
    • Wind
      Gust
      21 mph
    more
  • Sun

    Sep 21

    71°Lo 49°

    Clouds breaking; less humid

    Excellent for running
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      17 mph
    more
  • Mon

    Sep 22

    66°Lo 49°

    Times of sun and clouds

    Excellent for running
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      10 mph
    more
Next Previous
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  Thu
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Forecast
Mostly Cloudy
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Clear
Mostly Clear
Temp (°F) 64° 65° 65° 65° 63° 60° 57° 55°
RealFeel® 67° 69° 67° 65° 62° 58° 55° 53°
Humidity 69% 67% 66% 67% 70% 76% 82% 88%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
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Snow
 
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Ice
 
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  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (mph) 6 NE 6 NE 6 NE 7 NE 6 NE 5 NE 4 NE 3 ENE
UV Index 4 5 4 3 1 0 0 0
Cloud Cover 76% 16% 12% 11% 11% 11% 11% 10%
Dew Point 53° 54° 54° 53° 53° 53° 52° 51°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 65° 72° N/A 79°
Low 49° 53° N/A 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:35 AM with 12:22 of sunlight, then sets at 6:57 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:23 AM with 14:29 of moolight, then sets at 3:52 PM

Top Story

Round Lake Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 18, 2014; 6:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.